Driving Assist Systems - Toyota PRIUS 2020 Manual

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Driving assist systems

To keep driving safety and performance, the following systems

operate automatically in response to various driving situations.

Be aware, however, that these systems are supplementary and

should not be relied upon too heavily when operating the vehi-

ECB (Electronically Controlled Brake System)

The electronically controlled system generates braking force corre-

sponding to the brake operation

ABS (Anti-lock Brake System)

Helps to prevent wheel lock when the brakes are applied suddenly,

or if the brakes are applied while driving on a slippery road surface

Brake assist

Generates an increased level of braking force after the brake pedal

is depressed when the system detects a panic stop situation

VSC (Vehicle Stability Control)

Helps the driver to control skidding when swerving suddenly or

turning on slippery road surfaces.

Enhanced VSC (Enhanced Vehicle Stability Control)

Provides cooperative control of the ABS, TRAC, VSC and EPS.

Helps to maintain directional stability when swerving on slippery

road surfaces by controlling steering performance.

TRAC (Traction Control)

Helps to maintain drive power and prevent the drive wheels from

spinning when starting the vehicle or accelerating on slippery roads

Active Cornering Assist (ACA)

Helps to prevent the vehicle from drifting to the outer side by per-

forming inner wheel brake control when attempting to accelerate

while turning

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4-5. Using the driving support systems